The mean value from the treatment period for Total Asthma Symptom Score (total score: 0 is best - no asthma symptoms; 6 is worst).

Nights With Awakening(s) Due to Asthma Symptoms [ Time Frame: 52-week treatment period ] [ Designated as safety issue: No ]

The mean value from the treatment period was presented here.

The Percentage of Participants Who Had Experienced First Mild Asthma Exacerbations [ Time Frame: up to 52 weeks ] [ Designated as safety issue: No ]

Mild asthma exacerbation was defined as morning PEF ≥20% below baseline, daily as-needed medication use ≥2 inhalations above baseline, or a night with awakening due to asthma symptoms. The percentage of participants who had experienced mild asthma exacerbation(s) at the end of the study was presented here.

Symptom-free Days (no Symptoms and no Awakenings) [ Time Frame: 52-week treatment period ] [ Designated as safety issue: No ]

A symptom-free day was defined as a day without daytime or night-time symptoms and without night-time awakenings due to asthma symptoms. The mean value was presented here.

Percentage of As-needed-free Days [ Time Frame: 52-week treatment period ] [ Designated as safety issue: No ]

An as-needed-free day is defined as a night and day with no use of as-needed medication. The mean value from the treatment period was presented here.

Percentage of Asthma-control Days (no Asthma Symptoms, no Awakenings, and no As-needed Use) [ Time Frame: 52-week treatment period ] [ Designated as safety issue: No ]

An asthma-control day was defined as a a night and day with no asthma symptoms, no awakenings due to asthma symptoms, and no as-needed medication use. The mean value from the treatment period was presented here.

The ACQ developed by Juniper and colleagues (Juniper et al 1999) was used without the FEV1 and Beta 2-agonist questions. The Asthma Control Questionnaire has 5 questions that are assessed on a 7-point scale from 0 to 6 where 0 represents good control and 6 represents poor control. The overall score is the mean of the five responses. At least 4 out of the 5 questions must have been answered to provide a value. The mean of the overall score for Weeks 4 to 52 was presented here.

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Please refer to this study by its ClinicalTrials.gov identifier: NCT00839800